JPH0930791A - Side shifter of forklift truck - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a side shifter of a forklift truck, capable of replacing a lower liner simply and of holding it securely. SOLUTION: This is a side shifter of a forklift truck in which a side shift attachment 8 is slidably installed in the front of a lift bracket, while an upper liner and a lower liner 2 are interposed between the side shift attachment 8 and the lift bracket. In this constitution, the lower liner 2 is detachably attached to a fixture 10 installed in the side shift attachment 8 in the vertical direction. In addition, this lower liner 2 is provided with a fitting projection 21 on a mounting surface 23. This fixture 10 consists of a mounting plate 1 with a long hole 11 opened upward, for fitting the projection 21 of the lower liner 2 and a cap 3 being crowned at this upside and preventing any slip-off of the lower liner 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a side shift device for a forklift, in which a side shift attachment is slidably disposed on a front surface of a lift bracket, and more particularly to a mounting structure for a lower liner thereof.

[0002]

2. Description of the Related Art In a side shift device for a forklift, as shown in FIGS. 9 and 10, a side shift attachment 8 having a pair of left and right forks 98 attached to the side is attached to the front of a lift bracket 9 that moves up and down along the mast of the forklift. It is arranged so that it can slide in any direction. The lift bracket 9 is a pair of left and right main brackets 91.
An upper guide rail 92 and a lower guide rail 93 which are provided so as to be orthogonal to each other, and a wide rib 9 arranged between them.
4 and side ribs 95.

On the other hand, the side shift attachment 8
As shown in FIGS. 9 and 10, a slide rail 81 engaged with and supported by an upper guide rail 92 of the lift bracket 9, a lower bar 82 arranged in parallel with the slide rail 81, and a vertical bar connecting them. It is composed of ribs 83 and side ribs 84. A mounting plate 85 for mounting a lower liner 72, which will be described later, is attached to the lower bar 82.
Two left and right lower engaging portions 86 are arranged through the.

The side shift attachment 8 has the slide rail 81 and the lower engaging portion 86,
Upper guide rails 9 of the lift brackets 9 respectively
It is attached to the lift bracket 9 by engaging with the lower guide rail 93 and the lower guide rail 93.

The side shift attachment 8 is connected to a lift bracket 9 via a shift cylinder 6 for moving the side shift attachment 8 in the left and right directions. That is, FIG.
As shown in FIG. 5, the cylinder end 61 of the shift cylinder 6 is fixed to the cylinder bracket 926 of the upper guide rail 92 of the lift bracket 9 by a pin 64, and the cylinder rod tip 63 of the shift cylinder 6 is attached to the vertical rib 83 of the side shift attachment 8. It is fixed to the cylinder bracket 836 by a pin 65.

Further, in order to smooth the sliding of the side shift attachment 9 and prevent the wear of the respective parts when the side shift attachment 8 is mounted on the lift bracket 9, the slide rail 81 and the upper guide rail are attached. The upper liner 7 is interposed between the lower liner 92 and the lower guide rail 93, and the lower liner 2 is interposed between the lower plate 82 and the mounting plate 86 of the lower bar 82.

The lower liner 2 has a flat plate shape as shown in FIG. 11, and has a fitting projection portion 21 on a mounting surface 23 opposite to the sliding surface 22 facing the lift bracket 9 side. . On the other hand, as shown in FIG. 12, a mounting plate 85 for mounting the lower liner 2
Has an insertion hole 851 for inserting the protrusion 21 of the lower liner 2 and is fixed to the lower bar 82 of the side shift attachment 8.

The lower liner 2 has a structure shown in FIGS.
As shown in 4, the insertion hole 85 of the mounting plate 85
1, the protrusion 21 of the mounting surface 23 is inserted, and the sliding surface 22 is attached to the lower guide rail 93 of the lift bracket 9.
It is attached by abutting against. If the lower liner 2 becomes worn and becomes thin, replace it with a new lower liner 2.

[0009]

However, the above-mentioned conventional side shift device has the following problems. That is, it is very difficult to replace the lower liner 2 in the side shift device, and so-called serviceability is poor.

Specifically, as described above, the lower liner 2 is mounted by inserting the protrusion 21 into the insertion hole 851 of the mounting plate 85 and abutting on the lower guide rail 93 of the lift bracket 9. There is. Therefore, the lower liner 2 cannot be pulled out and replaced in the front-rear direction.

Therefore, when exchanging the lower liner 2, the shift cylinder 6 (FIGS. 9 and 10) is removed and then the side shift attachment 8 is slid laterally or the side shift attachment is moved. It is necessary to remove the entire 8 from the lift bracket 9 and open the sliding surface 22 side of the lower liner 2.

Further, after the replacement work of the lower liner 2 is completed, it is necessary to set the side shift attachment 8 again at a predetermined position on the lift bracket 9 and then attach the shift cylinder 6 thereto. As described above, in the conventional side shift device 90, replacement work of the lower liner is very difficult, and serviceability is poor.

The present invention has been made in view of the above conventional problems, and an object of the present invention is to provide a side shift device for a forklift truck, in which the lower liner can be easily replaced.

[0014]

According to the present invention, a side shift attachment is slidably arranged on the front surface of a lift bracket, and an upper liner and a lower liner are interposed between the side shift attachment and the lift bracket. In the side shift device, the lower liner is vertically removably attached to a fixture provided on the side shift attachment, and the lower liner is not a sliding surface facing the lift bracket. Has a protrusion for mating on the mounting surface on the opposite side,
On the other hand, the fixture is a mounting plate having an elongated hole opened upward for fitting the protruding portion of the lower liner, and is capped above the mounting plate to prevent the lower liner from coming out. A side shift device for a forklift, which is characterized by comprising a cap for preventing the side shift.

What is most noticeable in the present invention is that the attachment includes an attachment plate having the elongated hole and the cap. The lower liner is attached to the mounting plate so as to be vertically drawn out along the elongated hole, and
Being crowned by the cap.

It is preferable that the mounting plate has protrusions on both sides thereof for fixing the cap, while the cap has engagement portions that engage with the protrusions of the mounting plate. . As a result, the cap can be easily attached and detached, and rattling at the time of mounting can be prevented. In this case, the engaging portion of the cap may be a protruding engaging portion or a concave engaging portion into which the protrusion of the mounting plate is fitted.

Further, the mounting plate has engaging recesses for fixing the cap on both sides thereof, while the cap has engaging projections that engage with the engaging recesses of the mounting plate. It is also possible to have a structure having. This also makes it possible to easily remove and attach the cap, as in the case described above, and prevent rattling and the like during mounting.

[0018]

In the side shift device of the present invention, the mounting tool comprises the mounting plate having the elongated hole and the cap. The lower liner is attached to the attachment plate so as to be vertically drawn out along the elongated hole, and is capped with the cap.

Therefore, the replacement work of the lower liner can be performed very easily. That is, first, the cap capped on the mounting plate is removed. Then, pull up the worn lower liner. This makes it possible to take out the worn lower liner very easily.

Next, when mounting a new lower liner, the projecting portion of the lower liner is inserted from above the mounting plate along the elongated hole of the mounting plate. Then, the replacement work of the lower liner is completed by covering the mounting plate with the cap.

As described above, when the lower liner is attached, the cap is capped above the attachment plate. Therefore, the lower liner is restrained not only in the left-right direction by the elongated hole of the mounting plate but also in the vertical direction by the cap, so that the lower liner does not fall off during use of the forklift.

As described above, according to the present invention, it is possible to provide a side shift device for a forklift truck, in which the lower liner can be easily replaced and the lower liner can be reliably held.

[0023]

【Example】

Embodiment 1 A side shift device for a forklift according to an embodiment of the present invention will be described with reference to FIGS. In the side shift device 20 of this example, as shown in FIG. 4, the side shift attachment 8 is slidably arranged on the front surface of the lift bracket 9, and the side shift attachment 8 is attached.
The upper liner 7 and the lower liner 2 are interposed between the lift bracket 9 and the lift bracket 9.

As shown in FIG. 5, the lower liner 2 is vertically detachably attached to an attachment 10 provided on the side shift attachment 8.
As shown in FIGS. 1 and 11, the lower liner 2 has a sliding surface 2 facing the lift bracket 8 as in the conventional case.
The mounting surface 23 on the side opposite to 2 has a protrusion 21 for fitting.

On the other hand, as shown in FIGS. 1 to 3, the fitting 10 comprises a mounting plate 1 and a cap 3 which is capped above the mounting plate 1 to prevent the lower liner 2 from slipping out. Become.

As shown in FIGS. 1 and 2, the mounting plate 1 has an elongated hole 11 opened upward for fitting the projecting portion 21 of the lower liner 2 on both sides thereof. It has a protrusion 12 for fixing the cap 3. On the other hand, as shown in FIGS. 1 and 3, the cap 3 has an upper plate portion 30 that holds the lower liner 2 above.
1 and an arm portion 302 extending from both sides thereof. The arm portion 302 has a bulged engaging portion 31 that engages with the protrusion 12 of the mounting plate 1.

Next, the function and effect of this example will be described. In the side shift device 20 of this example, the fixture 10 includes the attachment plate 1 having the elongated hole 11,
It is composed of the cap 3. The lower liner 2 is attached to the mounting plate 1 so as to be vertically drawn out along the elongated hole 11, and
It is crowned by the cap 3.

Therefore, the replacement work of the lower liner 2 can be performed extremely easily. That is, first, the cap 3 capped on the mounting plate 1 is removed.
Then, the worn lower liner 2 is pulled upward.
As a result, the worn lower liner 2 can be taken out very easily.

Next, when mounting a new lower liner 2, as shown in FIG. 1, the protrusion 21 of the lower liner 2 is inserted from above the mounting plate 1 along the elongated hole 11 of the mounting plate 1. . Then, by capping the mounting plate 1 with the cap 3, the lower liner 2
Replacement work is completed. The cap 3 has an engaging portion 31
Is pushed over the protruding portion 12 of the mounting plate 1 and is engaged therewith, so that the mounting plate 1
Fixed above.

As described above, when the lower liner 2 is attached, the cap 3 is capped above the attachment plate 1. Therefore, the lower liner 2 is restrained not only in the lateral direction by the elongated hole 11 of the mounting plate 1 but also in the vertical direction by the cap 3, so that the lower liner 2 does not fall off during use of the forklift.

As described above, according to the present embodiment, the side shift device for a forklift can be obtained in which the lower liner 2 can be easily replaced and the lower liner can be securely held.

Example 2 In this example, as shown in FIG. 7, instead of the cap 3 of Example 1, a cap 39 having a concave engaging portion 32 was used. The mounting plate 1 and other structures are described in the first embodiment.
Is the same as

In this case, the concave portion 320 of the concave engaging portion 32 is fitted around the protrusion 12 of the mounting plate 1 to fix the cap 39. As a result, like the first embodiment, it is possible to prevent rattling and the like when the cap 39 is attached, and it is possible to easily attach and detach the cap 39. Therefore, also in this example, the same effect as in Example 1 can be obtained.

Example 3 In this example, as shown in FIG. 8, instead of the mounting plate 1 of Example 1, a mounting plate 11 having an inwardly recessed concave engaging portion 13 was used. The cap 3 and other structures are the same as in the first embodiment.

In this case, the cap 3 is fixed by fitting the bulged engaging portion 31 of the cap 3 into the concave engaging portion 13. As a result, like the first and second embodiments, it is possible to prevent rattling and the like when the cap 3 is attached, and it is possible to easily attach and detach the cap 3. Therefore, also in this example, the same effect as in Example 1 can be obtained.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a procedure for attaching a lower liner in the first embodiment.

FIG. 2 is a perspective view of a mounting plate according to the first embodiment.

FIG. 3 is a perspective view of a cap in the first embodiment.

FIG. 4 is a side view of the side shift device according to the first embodiment.

FIG. 5 is a rear view of the side shift attachment according to the first embodiment.

6 is a sectional view taken along the line AA of FIG.

FIG. 7 is a front view of a cap having another shape according to the second embodiment.

FIG. 8 is a front view of a mounting plate having a different shape according to the third embodiment.

FIG. 9 is a front view of a conventional side shift device.

FIG. 10 is a side view of a conventional side shift device.

FIG. 11 is a perspective view of a lower liner in a conventional example.

FIG. 12 is an explanatory view showing a procedure for attaching a lower liner in a conventional example.

FIG. 13 is a rear view of the side shift attachment in the conventional example.

FIG. 14 is a sectional view taken along line BB of FIG. 13;

[Explanation of symbols]

 1. . . Mounting plate, 10. . . Fittings, 11. . . Slotted hole, 12. . . Protrusion, 2. . . Lower liner, 20. . . Side shift device, 21. . . Protruding part, 22. . . Sliding surface, 23. . . Mounting surface, 3. . . Cap, 31. . . Engagement protrusion,

Claims (3)

[Claims] 1. A side shift device for a forklift, wherein a side shift attachment is slidably disposed on a front surface of a lift bracket, and an upper liner and a lower liner are interposed between the side shift attachment and the lift bracket. , The lower liner is vertically removably attached to an attachment provided on the side shift attachment, and the lower liner is an attachment surface opposite to the sliding surface facing the lift bracket. And a mounting plate having an elongated hole opened upward for fitting the projection of the lower liner, and a mounting plate above the mounting plate. A side of a forklift characterized by comprising a cap that is capped to prevent the lower liner from slipping out. Shift device. 2. The mounting plate according to claim 1, wherein the mounting plate has protrusions on both sides thereof for fixing the cap, while the cap engages with the protrusion of the mounting plate. A side shift device for a forklift having a joint. 3. The mounting plate according to claim 1, wherein the mounting plate has engaging recesses on both sides thereof for fixing the cap, while the cap engages with the engaging recesses of the mounting plate. A side shift device for a forklift, comprising: